Micromechanical capacitive transducer and method for...

Semiconductor device manufacturing: process – Making device or circuit responsive to nonelectrical signal – Physical stress responsive

Reexamination Certificate

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C257S415000

Reexamination Certificate

active

10991350

ABSTRACT:
A micromechanical capacitive converter and a method for manufacturing a micromechanical converter comprise a movable membrane and an electrically conductive face element in a carrier layer. The electrically conductive face element is arranged opposite the membrane above a cavity. The electrically conductive face element and the carrier layer are perforated by perforation openings. The opening width of the perforation openings corresponds approximately to the thickness of the carrier layer.

REFERENCES:
patent: 6389902 (2002-05-01), Aigner et al.
patent: 6535460 (2003-03-01), Loeppert et al.
patent: 6847090 (2005-01-01), Loeppert
patent: 2001/0015106 (2001-08-01), Aigner et al.
patent: 0 561 566 (1993-09-01), None
patent: 0 561 566 (1993-09-01), None
patent: WO 00/09440 (2000-02-01), None
Bourouina et al., “A New Condenser Microphone with a p+ Silicon Membrane”, Sensors and Actuators A, 1992, pp. 149-152, (4 pages).
Kühnel et al., “Micromachined Subminiature Condenser Microphones in Silicon”, Sensors and Actuators, Elsevier Sequoia, Apr. 1992, pp. 560-564, (5 pages).
Kabir et al., “High Sensitivity Acoustatic Transducers with Thin p+ Membranes and Gold Back-Plate”, Sensors and Actuators 78 (1999), pp. 138-142, (5 pages).
Bergqvist et al., “Capacitive Microphone with a Surface Micromachined Backplate Using Electroplating Technology”, Journal of Micromechanical Systems, vol. 3, No. 2, 1994, pp. 69-75, (7 pages).
Kovacs et al., “Fabrication of Single-Chip Polysilicon Condenser Structures for Microphone Applications”, J. Micromech. Microeng. 5, 1995, pp. 86-90, (5 pages).
Füldner et al., “Silicon Microphone with High Sensitivity Diaphragm Using SOI Substrate”, Eurosensors XIV, 2000, pp. 123-124, (2 pages).
Torkkelli et al., “Capacitive Microphone with Low-Stress Polysilicon Membrane and High-Stress Polysilicon Backplate”, Eurosensors XIII, 1999 pp. 57-60 (4 pages).
Kühnel, W., “Kapazitive Siliziummikrofone”, Series 10, Informatik/Kommunikationstechnik, No. 202, Fortschrittsberichte, VDI, VDI-Verlag, 1992, pp. 1-106 (57 sheets).

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